In Windows, Timeout and the Overlapped structure can be used to associate the timeouts with the asynchronous IO operation.
Whereas in QNX, we can use the aiocb structure and aio_* APIs to accomplish the asynchronous communication.
aiocb seems to be a good substitute for the Overlapped structure.

But, does QNX provides timeout structure for the read/write operations?
So, that for every asynchronous read, that is queued using aio_read(), I can associate a conditional timeout.

QNX also provides conditional timeouts through the readcond() API, can this facility of readcond() be used for asynchronous communication as well?